A few comments about this box...
1) Single sleeved EDH deck will fit in one side. Nothing more. If you have tokens, don't expect them to fit. I may get another smaller UG box for tokens for my commander decks. Kind of annoying, as noted by another poster, these will not fit more than 100 single sleeved on other side of the box.
2) Magnets are strong and the construction feels pretty sturdy overall. The Zenoskin material is the same as their 100+ boxes. I have high confidence that the finish will last a while in a backpack on the way to many EDH games.
When I have enough decks to justify it, I'll participate in this drop again, albeit with the promise that the vendor delivery / shipping will be a little better.